From: Charlene Liu <charlene....@amd.com>
[why]
currently dc has never reset this dpcd_cap.dpcd_rev.
[how]
ideally we should reset this before redo detection.
change the passive dongle only for now to reduce the impact.
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Signed-off-by: Charlene Liu <charlene....@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 6132b645bfd1..655b48c5ef37 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -541,6 +541,7 @@ static void link_disconnect_sink(struct dc_link *link)
}
link->dpcd_sink_count = 0;
+ //link->dpcd_caps.dpcd_rev.raw = 0;
}
static void link_disconnect_remap(struct dc_sink *prev_sink, struct dc_link
*link)
@@ -742,6 +743,7 @@ static bool detect_dp(struct dc_link *link,
sink_caps,
audio_support);
link->dpcd_caps.dongle_type = sink_caps->dongle_type;
+ link->dpcd_caps.dpcd_rev.raw = 0;
}
return true;
--
2.25.1
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